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3318 A Double Row Angular Contact Ball Bearing 90x190x73mm

3318 A Double Row Angular Contact Ball Bearing 90x190x73mm


Specifications
Inner Diameter (ID)
90
Outer Diameter (OD)
190
Width (W)
73
Overall Size (IDxODxW)
90x190x73
Dynamic Load Rating
208 kN
Static Load Rating
180 kN
Reference Speed
3 800 rpm
Limiting Speed
3 400 rpm
Cage Material
Steel
Seal Type
None On Both Sides
Clearance
CN
Precision
Grade 0
Operating Temperature
-40 °C to +120 °C
Contact Angle
30 °
Mass
8.54 kg
Details

Double row angular contact ball bearings are specialized rotating components designed to accommodate both radial and axial loads by incorporating two rows of balls set at an angle to the bearing axis. This unique design enhances their ability to handle combined loads and provides improved rigidity. The arrangement of the inner and outer rings and the double-row configuration allow these bearings to achieve higher axial load-carrying capacity compared to single-row angular contact ball bearings. This makes them suitable for applications where both radial and axial forces are present, such as in machine tool spindles, pumps, and gearboxes. The contact angle between the balls and the raceways provides the bearings with excellent axial rigidity, contributing to their precise positioning capabilities. Double row angular contact ball bearings are valued for their versatility, reliability, and efficiency in various industrial contexts, where the need for handling multiple types of loads is paramount. 


SPECIFICATIONS
 
 
Inner Diameter 90 mm Number of Rows 2
Outer Diameter 190 mm Material Steel
Width 73 mm Cage Material Steel
Dynamic Load Rating 208 kN Seal Type None On Both Sides
Static Load Rating 180 kN Clearance CN
Fatigue Load Limit 6.4 kN Precision Grade 0
Reference Speed 3 800 rpm Min Temperature -40 °C
Limiting Speed 3 400 rpm Max Temperature +120 °C
Contact Angle 30 ° Size Standard Metric System
Rolling Element Ball Mass 8.54 kg


FEATURES AND BENEFITS


  • Double row design with symmetrical layout.

  • 30° contact angle for balanced load distribution.

  • Accommodate radial load and axial load in one direction.

  • Provide a high degree of accuracy and are capable of running at high speed.

Yes, miniature ball bearings are designed to handle high rotational speeds, making them ideal for devices and equipment that require rapid movement.

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